LUFA/Drivers/USB/Core/UC3/USBInterrupt_UC3.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2011.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 #define  __INCLUDE_FROM_USB_DRIVER
  32 #include "../USBInterrupt.h"
  33
  34 void USB_INT_DisableAllInterrupts(void)
  35 {
  36         AVR32_USBB.USBCON.vbuste = false;
  37         AVR32_USBB.USBCON.idte   = false;
  38
  39         AVR32_USBB.uhinteclr     = -1;
  40         AVR32_USBB.udinteclr     = -1;
  41 }
  42
  43 void USB_INT_ClearAllInterrupts(void)
  44 {
  45         AVR32_USBB.USBSTACLR.vbustic = true;
  46         AVR32_USBB.USBSTACLR.idtic   = true;
  47
  48         AVR32_USBB.uhintclr      = -1;
  49         AVR32_USBB.udintclr      = -1;
  50 }
  51
  52 ISR(USB_GEN_vect)
  53 {
  54         #if defined(USB_CAN_BE_DEVICE)
  55         #if !defined(NO_SOF_EVENTS)
  56         if (USB_INT_HasOccurred(USB_INT_SOFI) && USB_INT_IsEnabled(USB_INT_SOFI))
  57         {
  58                 USB_INT_Clear(USB_INT_SOFI);
  59
  60                 EVENT_USB_Device_StartOfFrame();
  61         }
  62         #endif
  63
  64         if (USB_INT_HasOccurred(USB_INT_VBUSTI) && USB_INT_IsEnabled(USB_INT_VBUSTI))
  65         {
  66                 USB_INT_Clear(USB_INT_VBUSTI);
  67
  68                 if (USB_VBUS_GetStatus())
  69                 {
  70                         USB_DeviceState = DEVICE_STATE_Powered;
  71                         EVENT_USB_Device_Connect();
  72                 }
  73                 else
  74                 {
  75                         USB_DeviceState = DEVICE_STATE_Unattached;
  76                         EVENT_USB_Device_Disconnect();
  77                 }
  78         }
  79
  80         if (USB_INT_HasOccurred(USB_INT_SUSPI) && USB_INT_IsEnabled(USB_INT_SUSPI))
  81         {
  82                 USB_INT_Disable(USB_INT_SUSPI);
  83                 USB_INT_Enable(USB_INT_WAKEUPI);
  84
  85                 USB_CLK_Freeze();
  86
  87                 USB_DeviceState = DEVICE_STATE_Suspended;
  88                 EVENT_USB_Device_Suspend();
  89         }
  90
  91         if (USB_INT_HasOccurred(USB_INT_WAKEUPI) && USB_INT_IsEnabled(USB_INT_WAKEUPI))
  92         {
  93                 USB_CLK_Unfreeze();
  94
  95                 USB_INT_Clear(USB_INT_WAKEUPI);
  96
  97                 USB_INT_Disable(USB_INT_WAKEUPI);
  98                 USB_INT_Enable(USB_INT_SUSPI);
  99
 100                 if (USB_ConfigurationNumber)
 101                   USB_DeviceState = DEVICE_STATE_Configured;
 102                 else
 103                   USB_DeviceState = (USB_Device_IsAddressSet()) ? DEVICE_STATE_Configured : DEVICE_STATE_Powered;
 104
 105                 EVENT_USB_Device_WakeUp();
 106         }
 107
 108         if (USB_INT_HasOccurred(USB_INT_EORSTI) && USB_INT_IsEnabled(USB_INT_EORSTI))
 109         {
 110                 USB_INT_Clear(USB_INT_EORSTI);
 111
 112                 USB_DeviceState         = DEVICE_STATE_Default;
 113                 USB_ConfigurationNumber = 0;
 114
 115                 USB_INT_Clear(USB_INT_SUSPI);
 116                 USB_INT_Disable(USB_INT_SUSPI);
 117                 USB_INT_Enable(USB_INT_WAKEUPI);
 118
 119                 USB_Device_SetDeviceAddress(0);
 120                 Endpoint_ConfigureEndpoint(ENDPOINT_CONTROLEP, EP_TYPE_CONTROL,
 121                                            ENDPOINT_DIR_OUT, USB_ControlEndpointSize,
 122                                            ENDPOINT_BANK_SINGLE);
 123
 124                 EVENT_USB_Device_Reset();
 125         }
 126         #endif
 127
 128         #if defined(USB_CAN_BE_HOST)
 129         #if !defined(NO_SOF_EVENTS)
 130         if (USB_INT_HasOccurred(USB_INT_HSOFI) && USB_INT_IsEnabled(USB_INT_HSOFI))
 131         {
 132                 USB_INT_Clear(USB_INT_HSOFI);
 133
 134                 EVENT_USB_Host_StartOfFrame();
 135         }
 136         #endif
 137
 138         if (USB_INT_HasOccurred(USB_INT_DDISCI) && USB_INT_IsEnabled(USB_INT_DDISCI))
 139         {
 140                 USB_INT_Clear(USB_INT_DDISCI);
 141                 USB_INT_Clear(USB_INT_DCONNI);
 142                 USB_INT_Disable(USB_INT_DDISCI);
 143
 144                 EVENT_USB_Host_DeviceUnattached();
 145
 146                 USB_ResetInterface();
 147         }
 148
 149         if (USB_INT_HasOccurred(USB_INT_VBERRI) && USB_INT_IsEnabled(USB_INT_VBERRI))
 150         {
 151                 USB_INT_Clear(USB_INT_VBERRI);
 152
 153                 USB_Host_VBUS_Manual_Off();
 154                 USB_Host_VBUS_Auto_Off();
 155
 156                 EVENT_USB_Host_HostError(HOST_ERROR_VBusVoltageDip);
 157                 EVENT_USB_Host_DeviceUnattached();
 158
 159                 USB_HostState = HOST_STATE_Unattached;
 160         }
 161
 162         if (USB_INT_HasOccurred(USB_INT_DCONNI) && USB_INT_IsEnabled(USB_INT_DCONNI))
 163         {
 164                 USB_INT_Clear(USB_INT_DCONNI);
 165                 USB_INT_Disable(USB_INT_DCONNI);
 166
 167                 EVENT_USB_Host_DeviceAttached();
 168
 169                 USB_INT_Enable(USB_INT_DDISCI);
 170
 171                 USB_HostState = HOST_STATE_Powered;
 172         }
 173
 174         if (USB_INT_HasOccurred(USB_INT_BCERRI) && USB_INT_IsEnabled(USB_INT_BCERRI))
 175         {
 176                 USB_INT_Clear(USB_INT_BCERRI);
 177
 178                 EVENT_USB_Host_DeviceEnumerationFailed(HOST_ENUMERROR_NoDeviceDetected, 0);
 179                 EVENT_USB_Host_DeviceUnattached();
 180
 181                 USB_ResetInterface();
 182         }
 183         #endif
 184
 185         #if defined(USB_CAN_BE_BOTH)
 186         if (USB_INT_HasOccurred(USB_INT_IDTI) && USB_INT_IsEnabled(USB_INT_IDTI))
 187         {
 188                 USB_INT_Clear(USB_INT_IDTI);
 189
 190                 if (USB_DeviceState != DEVICE_STATE_Unattached)
 191                   EVENT_USB_Device_Disconnect();
 192
 193                 if (USB_HostState != HOST_STATE_Unattached)
 194                   EVENT_USB_Host_DeviceUnattached();
 195
 196                 USB_CurrentMode = USB_GetUSBModeFromUID();
 197                 USB_ResetInterface();
 198
 199                 EVENT_USB_UIDChange();
 200         }
 201         #endif
 202 }